Patents by Inventor Sueo Machi
Sueo Machi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5108565Abstract: A method of removing harmful gas from a refuse combustion exhaust gas. The refuse combustion exhaust gas, containing a harmful gas such as hydrogen chloride, is supplied to a reactor. Other steps include atomizing an alkaline material within the reactor, and applying radiation, such as an electron beam, to the refuse combustion exhaust gas, simultaneously with the atomizing of the alkaline material, thereby causing a reaction between the gas and the alkaline material, and recovering a salt produced by the reaction.Type: GrantFiled: September 4, 1990Date of Patent: April 28, 1992Assignees: Japan Atomic Energy Research Institute, NKK Corporation, Ebara CorporationInventors: Sueo Machi, Shoichi Sato, Okihiro Tokunaga, Yasushi Aoki, Shouichi Suda, Tsuneharu Miyachi, Yokichi Shibamura, Keita Kawamura, Ryoji Suzuki, Toru Agarida
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Patent number: 4407846Abstract: A method of producing a hydrophilic membrane from a polyethylene base film by first irradiating the film with ionizing radiation in air or an oxygen atmosphere and then grafting acrylic acid and/or methacrylic acid onto the irradiated film at low temperatures.Type: GrantFiled: October 13, 1981Date of Patent: October 4, 1983Assignees: Japan Atomic Energy Research Institute, Yuasa Battery Co., Ltd.Inventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo
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Patent number: 4379200Abstract: A method of producing an ion exchange membrane comprising irradiating a polyethylene film not more than 150 .mu.m thick with ionizing radiation for a total dose of 1-30 Mrads in vacuum or in an inert gas, bringing the irradiated film into contact with a 15 to 50 wt % aqueous solution of acrylic acid and/or methacrylic acid at 15.degree. to 50.degree. C. to have acrylic acid and/or methacrylic acid graft copolymerized onto polyethylene, followed by treatment of the graft copolymer with a 2 to 10 wt % aqueous solution of potassium hydroxide.Type: GrantFiled: September 14, 1981Date of Patent: April 5, 1983Assignee: Japan Atomic Energy Research InstituteInventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo
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Patent number: 4376794Abstract: A novel process for the production of a separator for use in a cell to prevent the short-circuiting of positive active material and negative active material comprises irradiating a polyolefin film 150 .mu.m or less thick with ionizing radiation at a dose rate of 5.times.10.sup.4 -10.sup.7 rads/sec. to give a total dose of 1 Mrad or more, contacting the irradiated film with an aqueous solution of a terminally unsaturated monomer such as acrylic acid, methacrylic acid and the like at a temperature of 10.degree. C.-60.degree. C. to thereby cause grafting of the monomer onto the polyolefin film before the grafted polymer film is treated with an aqueous alkaline solution to finally obtain the separator for use in a cell, which is substantially improved in that it shows low electrical resistance and is excellent both in its acid resistance and mechanical strength.Type: GrantFiled: October 5, 1981Date of Patent: March 15, 1983Assignees: Japan Atomic Energy Research Inst., Yuasa Battery Co., Ltd.Inventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo
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Patent number: 4354907Abstract: A process for the production of water-soluble, substantially solid, cationic polymers comprises the step of irradiating an aqueous solution with ionizing radiation, the aqueous solution comprising at least 50% by weight of one, or two or more of specific type of amino ester or esters optionally being accompanied by acrylamide, and at least 0.1% by weight of a specific type of alcohol as an agent for inhibiting water-insolubility of the resulting polymer.The amino esters have the generic formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 represents a hydrogen atom or an alkyl group having 1-4 carbon atoms; R.sub.3 and R.sub.4 each represents an alkyl group having 1-4 carbon atoms and x.sup.(-) represents an anion; or from the combination of at least one of said amino esters and acrylamide.Type: GrantFiled: February 5, 1980Date of Patent: October 19, 1982Assignees: Japan Atomic Energy Research Institute, Taki Chemical Co., Ltd.Inventors: Sueo Machi, Isao Ishigaki, Toshimi Okada, Shigeaki Washio
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Patent number: 4322511Abstract: A novel process for the production of fluorine-containing multi-component copolymers having functional groups is disclosed, which process is characterized in that tetrafluoroethylene having the formula: CF.sub.2 .dbd.CF.sub.2 ; one or two or more .alpha.,.beta.,.beta.-trifluoroacrylate having the generic formula: CF.sub.2 .dbd.CFCOOC.sub.n H.sub.2n+1 wherein n represents an integer of 1 or greater; and one or two or more .alpha.-olefin having the generic formula: ##STR1## wherein j and m each independently represents an integer of 0 to 11 inclusive; are copolymerized with one another in the presence of a radical initiator. The resultant interpolymer is hydrolyzed and cross-linked using ionizing radiation.Type: GrantFiled: June 12, 1980Date of Patent: March 30, 1982Assignee: Japan Atomic Energy Research InstituteInventors: Osamu Matsuda, Terutaka Watanabe, Yoneho Tabata, Sueo Machi
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Patent number: 4294675Abstract: A novel process for the production of fluorine-containing multi-component copolymers having functional groups is disclosed, which process is characterized in that tetrafluoroethylene having the formula: CF.sub.2 .dbd.CF.sub.2 ; one or two or more .alpha.,.beta.,.beta.-trifluoroacrylate having the generic formula: CF.sub.2 .dbd.CFCOOC.sub.n H.sub.2n+1 wherein n represents an integer of 1 or greater; and one or two or more .alpha.-olefin having the generic formula: ##STR1## wherein j and m each independently represents an integer of 0 to 11 inclusive; are copolymerized with one another in the presence of a radical initiator.Type: GrantFiled: October 16, 1979Date of Patent: October 13, 1981Assignee: Japan Atomic Energy Research InstituteInventors: Osamu Matsuda, Terutaka Watanabe, Yoneho Tabata, Sueo Machi
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Patent number: 4288467Abstract: A method of producing a membrane of graft copolymer by irradiating a polyolefine film with ionizing radiation before or simultaneously with graft copolymerizing an olefinic monomer or a mixture of an olefinic monomer and a polyene compound onto the polyolefine is disclosed. The method is characterized by graft copolymerization wherein the polyolefine base film is reciprocated between a pair of fixed reversing rollers through a mobile roller.Type: GrantFiled: February 4, 1980Date of Patent: September 8, 1981Assignee: Japan Atomic Energy Research InstituteInventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo
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Patent number: 4287272Abstract: There is disclosed a novel cell separator made of a grafted membrane comprising a polyethylene film which is graft-copolymerized with a monomer having an ion exchange group, characterized in that said membrane has an area which is not grafted at all or an area of low degree grafting. By making use of this membrane, a small size and thin cell having excellent performance as well as satisfactory mechanical strength can be produced at low cost with great advantages.Type: GrantFiled: April 21, 1980Date of Patent: September 1, 1981Assignees: Japan Atomic Energy Research Inst., Yuasa Battery Co. Ltd.Inventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo, Toshio Okada, Kazuo Murata, Shiro Tanso, Keizi Senoo
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Patent number: 4283442Abstract: A method of producing a dimensionally stable battery separator characterized by grafting acrylic acid and/or methacrylic acid onto a polyethylene film, treating the resulting membrane with an aqueous alkaline solution, and drying the treated membrane under application of tension.Type: GrantFiled: February 4, 1980Date of Patent: August 11, 1981Assignees: Japan Atomic Energy Research Institute, Yuasa Battery Co. Ltd.Inventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo
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Patent number: 4273840Abstract: A battery separator composed of a composite sheet of film to which a monomer having a hydrophilic or electrolytic group is grafted is disclosed. Said film consists of a first polymeric layer containing a substance capable of catching a metal ion dissolved from a positive or negative active material and a second polymeric layer integrally bonded to either one or both sides of the first polymeric layer and which contains no such substance or contains it in a smaller amount that that contained in said first polymeric layer. Also disclosed is a method of producing a battery separator by irradiating such composite sheet of film with ionizing radiation and immersing the irradiated film in a solution of a monomer containing a hydrophilic or electrolytic group or bringing it into contact with the monomer solution to thereby graft the monomer to the film.Type: GrantFiled: February 4, 1980Date of Patent: June 16, 1981Assignees: Japan Atomic Energy Research Institute, Yuasa Battery Co. Ltd.Inventors: Sueo Machi, Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo
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Patent number: 4256856Abstract: A cross-linked product of ethylene-hexafluoropropylene copolymer is a good elastic material and has excellent resistance to attack by uranium hexafluoride even at a high temperature. Components made of said copolymer exhibit surprisingly long life, when used in a uranium enrichment plant.Type: GrantFiled: August 15, 1977Date of Patent: March 17, 1981Assignees: Japan Atomic Energy Research Institute, Sugimoto Chemical Co. Ltd.Inventors: Masayuki Ito, Giro Okamoto, Sueo Machi, Kenzo Shirayama
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Patent number: 4137137Abstract: A graft copolymer membrane prepared by co-grafting a mixture of monomers consisting essentially of acyloxystyrene and/or hydroxystyrene, a polyene compound and at least one member selected from the group consisting of acrylic acid, methacrylic acid and esters of these acids onto a hydrocarbon type of fluorine-containing type polymer by means of ionizing radiation exhibits improved mechanical strength and reduced electrical resistance and provides an excellent ion-exchange membrane.Type: GrantFiled: July 13, 1977Date of Patent: January 30, 1979Assignees: Japan Atomic Energy Research Institute, Maruzen Oil Company LimitedInventors: Sueo Machi, Takanobu Sugo, Akio Sugishita, Sakunobu Kanai, Hiroshi Fujiwara
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Patent number: 4129617Abstract: A novel graft copolymer and a process for the production thereof is disclosed, said graft copolymer comprising a backbone chain of a fluoropolymer and side chains grafted thereon consisting essentially of at least a member selected from the group consisting of acyloxystyrene, diacyloxystyrene, hydroxystyrene and dihydroxystyrene or consisting essentially of a mixture of at least a member selected from the group mentioned above and a polyene compound. The grafting is conveniently carried out with the aid of an ionizing radiation. The novel graft copolymer has a wide variety of uses due to its improved characteristic properties such as, for example, improved adhesion properties, improved dyeing properties, improved reactivity to other compounds and the like.Type: GrantFiled: November 7, 1977Date of Patent: December 12, 1978Assignees: Japan Atomic Energy Research Institute, Maruzen Oil Company LimitedInventors: Sueo Machi, Yasushi Matsui, Akio Sugishita, Takanobu Sugo, Hiroaki Taniguchi, Koichi Asano, Hiroshi Fujiwara
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Patent number: 4066522Abstract: High molecular weight water-soluble acrylamide polymers can be produced in good yield by irradiating a solution comprising acetone, water and acrylamide with an ionizing radiation in the presence of an alkaline salt.Type: GrantFiled: January 14, 1976Date of Patent: January 3, 1978Assignee: Japan Atomic Energy Research InstituteInventors: Sueo Machi, Takeshi Wada, Hiroshi Sekiya
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Patent number: 4016134Abstract: A novel composite with improved mechanical properties is obtained by blending a gypsum and/or calcium sulfite with a polyolefin onto which acrylic acid was graft-polymerized.A polyolefin which is not graft-polymerized can optionally be blended in the composite.Type: GrantFiled: January 8, 1975Date of Patent: April 5, 1977Assignees: Japan Atomic Energy Research Institute, Maruzen Oil Co., Ltd., Mitsuhashi Kakoki Kaisha Ltd.Inventors: Sueo Machi, Taiji Aono, Yasushi Matui, Yoshiharu Hibi, Takayuki Shinano
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Patent number: 4004995Abstract: Removal of gaseous pollutants such as nitrogen oxides and sulfur dioxide from effluent gases can be carried out advantageously from an industrial viewpoint by effecting irradiation of said gases under specifically selected conditions. High dose rate electron beam irradiation at a dose rate in the region of 10.sup.5 rad/sec or higher is, unexpectedly, remarkably effective and efficient for said purpose. Irradiation under increased pressure is also preferable. Wash of gases after irradiation or effecting irradiation in the presence of water vapor is effective especially for the removal of nitrogen oxides. Further, by carrying out the process in two-steps in which nitrogen oxides are removed from such gases almost completely by irradiation with the minimum dose of electron beams before sulfur dioxide is removed from the thus treated gases by conventional desulfurization means, the process can be carried out very economically.Type: GrantFiled: February 28, 1974Date of Patent: January 25, 1977Assignees: Ebara Manufacturing Co., Ltd., Japan Atomic Energy Research InstituteInventors: Sueo Machi, Keita Kawamura, Shingi Aoki, Waichiro Kawakami, Shoji Hashimoto
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Patent number: 3997415Abstract: Sulfur dioxide and nitrogen oxides can be removed from effluent gases with increased efficiency by blowing contaminated air present in the irradiation room into a stream of the effluent gases before the mixture is delivered to a reaction chamber to be irradiated with an ionizing radiation or ultraviolet light. This provides also a convenient process for purifying the contaminated air containing nitrogen oxides and ozone before release into the atmosphere. Thus, simultaneous purification of industrial effluent gases and contaminated air is advantageously carried out.Type: GrantFiled: February 28, 1974Date of Patent: December 14, 1976Assignee: Ebara Manufacturing Co., Ltd.Inventors: Sueo Machi, Keita Kawamura, Shingi Aoki
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Patent number: 3981815Abstract: Effluent gas containing SO.sub.2 and/or nitrogen oxides of various forms (referred to as NO.sub.x) are irradiated with an ionizing radiation to form aerosol. The aerosol is collected by a collecting means to form a collected material containing sulfur dioxide and nitrogen oxides. Effective components are recovered from the collected material by subjecting it either to steam-roasting with or without addition of ore of low grade, solid waste generated from smelting processes, copper-containing pyrite cinders or an alkali earth metal compound to the collected material, or to thermal decomposition.Type: GrantFiled: September 16, 1974Date of Patent: September 21, 1976Assignee: Ebara Manufacturing Co., Ltd.Inventors: Masao Taniguchi, Sueo Machi, Waichiro Kawakami, Shoji Hashimoto, Keita Kawamura, Shingi Aoki
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Patent number: 3941671Abstract: A stable aqueous dispersion of unexpectedly high molecular weight polytetrafluoroethylene, containing no additives such as dispersing and emulsifying agents, is prepared by radiation-polymerizating tetrafluoroethylene monomer in an aqueous phase in the absence of dispersing or emulsifying agent.Type: GrantFiled: February 22, 1974Date of Patent: March 2, 1976Assignee: Japan Atomic Energy Research InstituteInventors: Sueo Machi, Takeshi Suwa, Masaaki Takehisa, Tadao Seguchi